Topsun Pipelines is found in 2007, which is located in Huangshi city, Hubei province, China. Originally, we mainly produced pipe fittings. Later, as the scope of business expanded, we're still specializing in the development and sales of pipelines system products , including ductile cast iron pipes and pipe fittings that comply with ISO2531/BS EN545/BS EN598/ AWWA C153 / AWWA C110 standard, sizes from DN60mm-DN2600mm, and Flange adapter, Coupling joint, SMLS pipes , Valves, Manhole cover , Galvanized malleable iron and so on. Application fields all kinds of piping systems products, such as water supply and drainage, construction, fire protection and irrigation .